资源与外观调整

src/style.css

@@ -12,3 +12,8 @@ html, body {
 body { position: fixed; inset: 0; }
 * { box-sizing: border-box; }
 #app { position: fixed; inset: 0; width: auto; height: auto; overflow: clip; }
+
+/* 数值由滑块、键盘或直接输入调整，统一隐藏浏览器自带的上下微调箭头。 */
+input[type='number'] { appearance: textfield; -moz-appearance: textfield; }
+input[type='number']::-webkit-inner-spin-button,
+input[type='number']::-webkit-outer-spin-button { margin: 0; -webkit-appearance: none; appearance: none; }